Ambient Light Device for a Rotary Shift Device

Abstract

The present invention provides an ambient light device for a rotary shift device. The ambient light device includes a printed circuit board (PCB), a light source, a light guide, and a light emitting mechanism; the printed circuit board (PCB) is connected to the main housing; the light source is fixed to the PCB; the light guide is connected to the main housing and is configured to transmit the light of the light source; the light emitting mechanism is disposed in a shift knob rotatably coupled to the main housing and is configured to reflect the light of the light source transmitted through the light guide and irradiate it to the outside of the shift knob in the form of ambient light.

Description

Technical Field

[0001] The present invention relates to an ambient light device for a rotary shift device. Background Art

[0002] Generally, a vehicle equipped with an automatic transmission controls hydraulic pressure within a shift range set according to the vehicle's traveling speed, so that shift gears within the target shift gear range can be automatically operated.

[0003] The automatic transmission generates a transmission ratio by using a hydraulic circuit, planetary gears, and friction elements to perform shifting, and the control of these components is processed by a transmission control unit (TCU).

[0004] A shift-by-wire (hereinafter referred to as SBW) system is an electronic transmission system for a vehicle. Different from a conventional mechanical transmission system, it is an electronic transmission system without a mechanical connection structure such as a cable between the transmission and the shift device (joystick, button, knob). In this system, if a signal generated during the operation of the electronic shift device (joystick, button, or knob) is transmitted to the transmission control unit (TCU), the transmission actuator (shift cable motor, selector cable motor) is operated by an electronic signal indicated by the TCU. By operating the transmission brake, hydraulic pressure is applied to or blocked from the hydraulic circuit at each shift gear, thereby electrically performing shift control.

[0005] Therefore, an automatic transmission based on SBW can transmit the driver's shifting intention as an electrical signal to the TCU through a simple operation of the electronic shift device (joystick, button, or knob), making it easier to shift to forward (D) gear, reverse (R) gear, neutral gear (Nd gear, Nr gear), etc., and also enabling the miniaturization of the shift device, thereby ensuring a spacious space between the driver's seat and the passenger's seat.

[0006] The methods of performing shifting in an electronic transmission system are generally divided into a lever type using a lever, a button type using a button, and a rotary type using a knob.

[0007] A rotary shift device is a structure that generates a shift signal when a shift knob corresponding to a rotating part rotates relative to a housing corresponding to a fixed part. Its drawback is that it is difficult to implement ambient light in a rotary shift device having a shift knob that rotates by operation.

[0008] Ambient light is a decorative atmosphere light that emits soft light at necessary parts inside the vehicle at night instead of the direct light of the light source. When driving at night, if the light emitted by the light source directly enters the driver's eyes, the driver's eyes will feel fatigued, which will reduce concentration and interfere with safe driving. Therefore, to prevent this, ambient light is implemented at necessary parts inside the vehicle instead of the direct light of the light source.

[0009] If ambient light is implemented in the shift device operated by the driver, when the driver shifts gears at night, the driver can visually ensure gear shifting. However, it is generally difficult to implement ambient light in a knob-type shift device having a shift knob that rotates by the driver's operation.

[0010] In addition, even if ambient light is implemented in a knob-type shift device having a shift knob that rotates by operation, as a structure in which most of the components for covering the light of the light source cover 90% or more of the light of the light source, due to excessive light loss, ambient light cannot be properly implemented.

[0011] The above content explained as the background is only intended to help understand the background of the present invention and is not intended to indicate that the present invention falls within the scope of related art known to those skilled in the art. Summary of the Invention

[0012] The present invention relates to an ambient light device for a knob-type shift device. A specific embodiment relates to an ambient light device for a knob-type shift device that can implement ambient light in a shift knob that rotates by the driver's operation.

[0013] An embodiment of the present invention provides an ambient light device for a knob-type shift device, which is configured to fix a printed circuit board (PCB), a light source, and a light guide to a main housing corresponding to a fixed part, and has a reflector and a lighting window for reflecting the light of the light source to a shift knob that is a rotating part rotated by the driver's operation, thereby implementing ambient light in a knob-type shift device having a shift knob that rotates by the driver's operation. And through this structure, as much ambient light as possible can be implemented without light loss of the light source, thereby enhancing marketability.

[0014] The ambient light device for a knob-type shift device according to an embodiment of the present invention includes: a PCB connected to the main housing; a light source fixed to the PCB; a light guide connected to the main housing and configured to transmit the light of the light source; and a lighting mechanism provided in a shift knob rotatably coupled to the main housing and configured to reflect the light of the light source transmitted through the light guide and irradiate it to the outside of the shift knob in the form of ambient light.

[0015] It is configured such that an upwardly protruding boss portion is formed in the main housing, the light guide is mounted to fit outside the boss portion, the PCB and the light source are located below the light guide, and the light emitting mechanism is located above the light guide.

[0016] The upwardly protruding boss portion is formed in the main housing, and the light guide includes a cylindrical portion that is mounted to fit over the outside of the boss portion. Legs that protrude downward from the cylindrical portion to face the light source are fixed to the PCB.

[0017] Optical devices are formed on the upper surface of the cylindrical portion to scatter the light of the light source.

[0018] The shift knob includes a lower knob and an upper knob. The lower knob is rotatably coupled to the main housing. The upper knob is coupled to the lower knob. The upper surface of the cylindrical portion of the light guide faces the lower knob, and a portion of the lower knob that faces the upper surface of the cylindrical portion is configured as a light transmissive portion through which light can pass.

[0019] The light emitting mechanism includes: a reflector that is coupled to the upper portion of the lower knob to be positioned above the light transmissive portion; and an illumination window that is coupled to the upper knob to cover the open upper portion of the upper knob. The light of the light source that passes through the light transmissive portion and is then reflected by the reflector is reflected again by the surface of the lower knob and the inner surface of the upper knob, and then is irradiated to the outside through the illumination window, thereby achieving ambient light.

[0020] A pattern layer for achieving a specific shape pattern is formed on the surface of the lower knob by using the light reflected from the reflector.

[0021] The lower surface of the reflector that faces the light transmissive portion is formed by an inclined surface to reflect the light of the light source to the surface of the lower knob.

[0022] In the ambient light device of the knob-type shift device according to an embodiment of the present invention, a light source is coupled to the main housing corresponding to a fixed component, a reflector is coupled to the shift knob which is a rotating component that rotates relative to the main housing, and the light of the light source is reflected by the reflector and then irradiated to the outside of the shift knob, thereby achieving ambient light.

[0023] A light guide for transmitting the light of the light source to the reflector is located between the light source and the reflector, and the light guide is coupled to be fixed to the main housing as a fixed component.

[0024] Embodiments of the present invention are configured to fix a PCB, a light source, and a light guide to a main housing corresponding to a fixed member, and have a reflector and a lighting window for reflecting light from the light source to a shift knob that is a rotating member rotated by a driver's operation, thereby realizing ambient light in a knob-type shift device having a shift knob rotated by a driver's operation. With this configuration, it is possible to accurately realize ambient light while minimizing light loss of the light source in the knob-type shift device having a shift knob rotated by a driver's operation, thereby enhancing marketability.

[0025] In addition, embodiments of the present invention are configured such that a bearing is installed between a boss portion of the main housing and a rotating body coupled to the shift knob, and direct contact between the boss portion corresponding to the fixed member and the shift knob and the rotating body corresponding to the rotating member can be prevented, so as to prevent frictional force from being generated through the bearing during the rotation operation of the shift knob, thereby realizing prevention of wear and noise due to frictional force to enhance durability. In addition, unevenness due to friction is eliminated, thereby enhancing the operating feeling.

[0026] In addition, by using a bearing, embodiments of the present invention can eliminate the generation of frictional force between the boss portion corresponding to the fixed member and the shift knob and the rotating body corresponding to the rotating member, so as to eliminate the jamming phenomenon when the shift knob rotates from the neutral position to the D position or from the neutral position to the R position, thereby improving quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other objects, features, and other advantages of the present invention will be more clearly understood from the following detailed description in conjunction with the accompanying drawings, wherein:

[0028] Figure 1 is an exploded perspective view of a knob-type shift device for an electronic transmission system according to an embodiment of the present invention;

[0029] Figure 2 and Figure 3 are respectively Figure 1 a coupled perspective view and a coupled state cross-sectional view of;

[0030] Figure 4 is a magnified view of a portion on which a bearing is installed in Figure 3 ;

[0031] Figure 5 is a magnified view of a portion on which a bearing retainer is installed according to an embodiment of the present invention;

[0032] Figure 6 is a magnified view of a portion on which a knob flange is formed according to an embodiment of the present invention;

[0033] Figure 7It is a diagram for explaining the structure that provides the operating feeling and return force of a shift knob according to an embodiment of the present invention;

[0034] Figure 8 It is an exploded perspective view of an ambient light device according to an embodiment of the present invention;

[0035] Figure 9 It is Figure 8 a sectional view of the connection state; and

[0036] Figure 10 It is a top view of a knob-type shift device in which ambient light is illuminated according to an embodiment of the present invention. Detailed Description

[0037] Hereinafter, an ambient light device of a knob-type shift device according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

[0038] As Figures 1 to 10 shown, a knob-type shift device for an electronic transmission system according to an embodiment of the present invention includes a main housing 100 having a boss portion 110 protruding upward.

[0039] The main housing 100 is installed to be fixed to a vehicle body (such as a console, a center instrument panel, etc.) on the side of a driver's seat, and the main housing 100 is integrally formed with the boss portion 110 formed in a cylindrical shape and protruding upward.

[0040] The boss portion 110 includes a first boss 111 and a second boss 112. The first boss 111 is cylindrical with a predetermined diameter, and the second boss 112 is formed in a cylindrical shape with a diameter larger than that of the first boss 111 and is located outside the first boss 111.

[0041] A bearing 200 is installed to fit around the outside of the boss portion 110, a rotating body 300 is installed to fit around the outside of the bearing 200, and the rotating body 300 is connected to a shift knob 400 that rotates by the operation of a driver's hand.

[0042] The bearing 200 includes an inner ring 210, an outer ring 220, and a plurality of balls 230; the inner ring 210 is press-fitted onto the outside of the second boss 112 to be integrally connected with the second boss 112; the outer ring 220 is press-fitted into the inside of the rotating body 300 to be integrally connected with the rotating body 300; and the plurality of balls 230 are located between the inner ring 210 and the outer ring 220.

[0043] The rotating body 300 is connected to the lower part of the shift knob 400, extends downward from the shift knob 400, and is integrally formed with the shift knob 400. The rotating body 300 and the bearing 200 are structured to be covered by the shift knob 400 and not exposed outward, and the shift knob 400 and the rotating body 300 rotate together under the driver's operation.

[0044] The bearing 200 is installed to be inserted into the gap between the second boss 112 and the rotating body 300, and is installed such that the bearing 200 is assembled to the outside of the second boss 112, and the rotating body 300 is assembled to the outside of the bearing 200.

[0045] That is, the inner ring 210 of the bearing 200 is connected by being assembled to the outside of the second boss 112 in a forced press - fit manner, and the rotating body 300 connected to the shift knob 400 is connected by being assembled to the outside of the outer ring 220 of the bearing 200 in a forced press - fit manner.

[0046] At this time, bearing support protrusions 112a, 310 in which the lower end of the bearing 200 is located are respectively formed on the outside of the second boss 112 and the inside of the rotating body 300, and the bearing support protrusions 112a, 310 are used to support the lower end of the bearing 200 to limit the downward movement of the bearing 200.

[0047] The bearing support protrusion 112a formed on the second boss 112 supports the lower end of the inner ring 210 of the bearing 200, and the bearing support protrusion 310 formed on the rotating body 300 supports the lower end of the outer ring 220 of the bearing 200.

[0048] Therefore, if the driver rotates the shift knob 400, the rotating body 300 rotates together with the shift knob 400, and the outer ring 220 of the bearing 200 rotates together with the rotating body 300. At this time, the second boss 112 of the main housing 100 and the inner ring 210 of the bearing 200 connected to the second boss 112 become non - rotating fixed components.

[0049] As described above, the embodiment according to the present invention is a structure in which the bearing 200 is installed between the boss portion 110 of the main housing 100 and the rotating body 300 connected to the shift knob 400, and it is possible to prevent direct contact between the boss portion 110 corresponding to the fixed component and the shift knob 400 and the rotating body 300 corresponding to the rotating components, so as to prevent the generation of frictional force through the bearing 200 during the rotation operation of the shift knob 400, thereby achieving the prevention of wear and noise due to frictional force to enhance durability. In addition, it is possible to eliminate the uneven feeling caused by friction, thereby enhancing the operating feeling.

[0050] In addition, by using the bearing 200, embodiments of the present invention can eliminate the frictional force generated between the boss portion 110 corresponding to the fixed component and the shift knob 400 and the rotating body 300 corresponding to the rotating component, so as to eliminate the jamming phenomenon of the shift knob 400 rotating from the neutral position to the D position or from the neutral position to the R position, thereby improving the quality.

[0051] The embodiment according to the present invention also has a structure that restricts the upward movement of the bearing 200 by using the bearing retainer 500, thereby preventing the upward separation of the bearing 200.

[0052] The bearing retainer 500 is positioned in the shift knob 400 and is assembled into the gap between the first boss 111 and the second boss 112 to be installed in contact with the upper surface of the bearing 200.

[0053] More specifically, the light guide 600 is installed to be assembled to the outside of the first boss 111 to be coupled to the first boss 111. The cylindrical retainer coupling portion 510 constituting the bearing retainer 500 is assembled in the gap between the light guide 600 and the second boss 112. The upper end and the lower end of the retainer coupling portion 510 are respectively formed in a cross-section of a triangular protrusion, so that the upper triangular protrusion cross-section 511 is coupled to the upper side of the light guide 600 in a snap structure, and the lower triangular protrusion cross-section 512 is coupled to the snap protrusion 112b formed inside the second boss 112 in a snap structure.

[0054] The bearing pressing portion 520 constituting the bearing retainer 500 is formed to protrude outward from the retainer coupling portion 510, and when the retainer coupling portion 510 is installed to be inserted into the gap between the light guide 600 and the second boss 112, it presses the upper surface of the inner ring 210 of the bearing 200, so that the bearing 200 is pressed by the bearing retainer 500, thereby preventing upward movement and separation.

[0055] The shift knob 400 mainly includes a lower knob 410 and an upper knob 420. The lower knob 410 is coupled to the rotating body 300 and rotates relative to the main housing 100, and the upper knob 420 is coupled to the lower knob 410 and is operated by the driver.

[0056] Although the lighting window 430 can be included in the knob 400, in another embodiment of the present invention, the lighting window 430 is described as a component for implementing a light-emitting mechanism for ambient light.

[0057] In the embodiment according to the present invention, the inner surface of the shift knob 400 is described in more detail. The lower inner surface of the lower knob 410 is integrally formed with the knob flange 440, and the knob flange 440 protrudes toward the bearing 200 installed between the second boss 112 and the rotating body 300.

[0058] The lower end of the knob flange 440 is configured to be slightly spaced apart from the upper side of the bearing 200, and if the bearing 200 moves upward under the action of an external force, the upper surface of the bearing 200 contacts the lower end of the knob flange 440. Therefore, the knob flange 440 is used to prevent the bearing 200 from separating upward together with the bearing retainer 500.

[0059] The knob-type shift device according to an embodiment of the present invention further includes a device for implementing ambient light.

[0060] That is, the ambient light device for the knob-type shift device according to the present invention further includes a printed circuit board (PCB) 710, a plurality of light sources 720, a light guide 600, and a light emitting mechanism; the printed circuit board (PCB) 710 is coupled and fixed to the main housing 100; the plurality of light sources 720 are fixed to the PCB 710; the light guide 600 is coupled to the main housing 100 and is used to transmit the light of the light source 720; the light emitting mechanism is provided in the shift knob 400 rotatably coupled to the main housing 100 and is used to reflect the light of the light source 720 transmitted through the light guide 600 and irradiate it to the outside of the shift knob 400 in the form of ambient light.

[0061] The D gear position, R gear position, and neutral gear position signals generated by the rotational operation of the shift knob 400 and the P gear position signal generated by the pressing operation of the P gear position button 740 are transmitted to the transmission control unit (TCU) through the PCB 710, the transmission actuator is operated by the signal issued by the transmission control unit, and, through the operation of the transmission actuator, hydraulic pressure is applied to or blocked from the hydraulic circuit at each shift gear position of the transmission, thereby electrically performing shift control.

[0062] The light source 720 mounted on the PCB 710 is an LED light source, and ambient light (atmosphere light) can be realized when the light source 720 is turned on according to the switch operation of the driver.

[0063] The structure for implementing ambient light is described in more detail. It is configured such that the light guide 600 is mounted to fit into the outside of the first boss 111 formed in the main housing 100 to be coupled to the first boss 111, the PCB 710 and the light source 720 are located below the light guide 600, and the light emitting mechanism is located above the light guide 600.

[0064] The light guide 600 is a component for transmitting the light generated from the light source 720 to the reflector 730 described later, and includes a cylindrical portion 610 and a plurality of legs 620; the cylindrical portion 610 is mounted to fit into the outside of the first boss 111; the plurality of legs 620 protrude downward from the cylindrical portion 610 to face the light source 720 fixed to the PCB 710.

[0065] The legs 620 are configured to be formed in the same number as the light sources 720, such that the legs 620 and the light sources 720 are respectively matched one-to-one.

[0066] In addition, an optical device 630 for scattering light to evenly distribute the light of the light source 720 is formed on the entire upper surface of the cylindrical portion 610 constituting the light guide 600.

[0067] Diffuse reflection of light can be achieved by the optical device 630.

[0068] Since the light guide 600 is located below the lower knob 410 constituting the shift knob 400, the optical device 630 formed on the upper surface of the cylindrical portion 610 of the light guide 600 is configured to face the lower knob 410, such that a portion of the lower knob 410 facing the optical device 630 formed on the upper surface of the cylindrical portion 610 is configured as a light-transmissive portion 411 through which light can pass.

[0069] The light-transmissive portion 411 of the lower knob 410 can be an air layer, or can also be formed of a transparent window through which light can pass.

[0070] The light-emitting mechanism includes a reflector 730 and an illumination window 430; the reflector 730 is mounted to be fitted into the upper side of the lower knob 410 to be positioned above the light-transmissive portion 411; the illumination window 430 is coupled to the upper knob 420 to cover the open upper portion of the upper knob 420.

[0071] The illumination window 430 can be formed of a transparent window or a translucent window through which light can pass.

[0072] If the LED light source 720 is turned on by the control of the PCB 710 through the driver's switch operation, the light generated from the light source 720 moves through the light guide 600, then passes through the light-transmissive portion 411 of the lower knob 410, the light passing through the light-transmissive portion 411 of the lower knob 410 is reflected by the reflector 730 coupled to the upper side of the lower knob 410, and the light of the light source 720 reflected from the reflector 730 is reflected again by the surface of the lower knob 410 and the inner surface of the upper knob 420, and then is irradiated to the outside of the shift knob 400 through the illumination window 430, thereby realizing ambient light.

[0073] Therefore, an embodiment according to the present invention is such a configuration that can minimize the light loss of the light source 720 in the knob-type shift device in which the knob 400 is rotated by the driver's operation while sufficiently realizing ambient light, and through this configuration, the marketability can be enhanced.

[0074] That is, an embodiment of the present invention is a configuration in which the PCB 710, the light source 720, and the light guide 600 are configured to be fixed to the main housing 100 corresponding to the fixed member, and have a reflector 730 and an illumination window 430 for reflecting the light of the light source 720 to the shift knob 400, which is a rotating member rotated by the operation of the driver, so as to achieve ambient light. And through this configuration, it is possible to minimize the light loss of the light source 720 in the knob-type shift device in which the shift knob 400 is rotated by the operation of the driver and accurately achieve ambient light at the same time.

[0075] According to an embodiment of the present invention, since the pattern layer 450 that can form a pattern of a specific shape can be achieved by using the light reflected from the reflector 730, the light of the light source 720 reflected from the reflector 730 can be irradiated onto the pattern layer 450 formed on the surface of the lower knob 410, and the light irradiated onto the pattern layer 450 can be exposed to the outside through the illumination window 430 constituting the shift knob 400, thereby achieving ambient light.

[0076] For example, as Figure 10 shown, it is possible to achieve ambient light (L1) that provides a feeling of radial diffusion of light through the pattern layer 450, and it is possible to achieve ambient light of various patterns according to the shape of the pattern layer 450.

[0077] In addition, according to an embodiment of the present invention, in order to uniformly reflect the light of the light source 720 onto the pattern layer 450, the lower surface of the reflector 730 facing the light-transmitting portion 411 in the reflector 730 is preferably formed by the surface of the lower knob 410, that is, the inclined surface 731, such that the angle of the inclined surface 731 is formed into an inclined angle in a shape where the angle between the pattern layers 450 gradually increases radially toward the outside.

[0078] In addition, the knob-type shift device according to an embodiment of the present invention further includes a configuration for providing an operation feeling (shift feeling) when the driver operates the rotation of the shift knob 400 and returning the shift knob 400 to the return position when the operating force from the rotating shift knob 400 is released.

[0079] That is, an operation feeling generating portion 810 is integrally formed on the rotating body 300, and a groove 811 recessed in an arc shape is formed at the central portion in the length direction of the operation feeling generating portion 810.

[0080] The operation feeling generating portion 810 is formed to expand in the radial direction of the rotating body 300, and both ends thereof extend in the circumferential direction.

[0081] In addition, one end of the leaf spring assembly 820 is coupled and fixed to the main housing 100, the roller 830 is rotatably coupled to the other end of the leaf spring assembly 820, and during the rotation of the shift knob 400, the roller 830 is inserted into or disengaged from the groove 811 to contact the side surface of the operation feeling generating portion 810.

[0082] As Figure 7 shown, when the roller 830 is located in the groove 811 of the operation feeling generating portion 810, the shift gear of the vehicle remains in the neutral gear state.

[0083] If the driver rotates the shift knob 400 clockwise (arrow R1) when the shift gear is in the neutral gear state, the roller 830 in the groove 811 of the operation feeling generating portion 810 disengages from the groove 811 through the rotation of the rotating body 300 and contacts the surface of the operation feeling generating portion 810. At this time, the leaf spring assembly 820 bends outward (arrow M1) while accumulating elastic force, and the shift gear changes to the Nd gear or the D gear.

[0084] In addition, if the driver releases the operating force from the shift knob 400 rotated to the Nd gear or the D gear, the leaf spring assembly 820 bent outward (arrow M1) applies a force to move in the direction opposite to the arrow M1 through the restoring force. The roller 830 that has disengaged from the groove 811 and contacts the surface of the operation feeling generating portion 810 due to the restoring force of the leaf spring assembly 820 performs an operation of reinserting into the groove 811 again. Through this operation of the roller 830, the shift knob 400 located in the Nd gear or the D gear is rotated counterclockwise (arrow R2) by the restoring force of the leaf spring assembly 820 to return to the neutral gear as the return position.

[0085] In addition, since the rotation from the neutral gear to the Nr gear or the R gear and the return operation from the Nr gear or the R gear to the neutral gear are the same as those described above, the detailed description thereof will be omitted.

[0086] As described above, the knob-type shift device according to the embodiment of the present invention has a structure in which the bearing 200 is installed between the boss portion 110 of the main housing 100 and the rotating body 300 coupled to the shift knob 400, and can prevent direct contact between the boss portion 110 corresponding to the fixed component and the shift knob 400 and the rotating body 300 corresponding to the rotating component, so as to prevent the generation of frictional force through the bearing 200 during the rotation operation of the shift knob 400, thereby achieving the prevention of wear and noise due to frictional force to enhance durability. In addition, the uneven feeling caused by friction can be eliminated, thereby enhancing the operation feeling.

[0087] In addition, by using the bearing 200, the present invention can eliminate the frictional force generated between the boss portion 110 corresponding to the fixed member and the shift knob 400 and the rotating body 300 corresponding to the rotating member, and eliminate the jamming phenomenon of the shift knob 400 rotating from the neutral position to the D position or from the neutral position to the R position, thereby improving the quality.

[0088] In addition, an embodiment of the present invention is a configuration in which the PCB 710, the light source 720, and the light guide 600 are configured to be fixed to the main housing 100 corresponding to the fixed member, and has a reflector 730 and an illumination window 430 for reflecting the light of the light source 720 to the shift knob 400, which is a rotating member rotated by the operation of the driver, so as to achieve ambient light in the knob-type shift device having the shift knob 400 rotated by the operation of the driver. And, with this configuration, it is possible to minimize the light loss of the light source 720 in the knob-type shift device in which the shift knob 400 is rotated by the operation of the driver while accurately achieving the ambient light, thereby enhancing the marketability.

[0089] Although the present invention has been shown and described with respect to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made to the present invention without departing from the spirit and scope of the present invention as defined in the claims.

Claims

1. An ambient light device for a rotary shift device, comprising: A printed circuit board coupled to a main housing; A light source fixed to the printed circuit board; A light guide coupled to the main housing and configured to transmit light from the light source; And A light emitting mechanism disposed in a shift knob rotatably coupled to the main housing and configured to reflect the light from the light source transmitted through the light guide and irradiate it to the outside of the shift knob in the form of ambient light, Wherein the shift knob includes a lower knob and an upper knob, the lower knob is rotatably coupled to the main housing and includes a light transmissive portion, and the upper knob is coupled to the lower knob; The light emitting mechanism includes a reflector coupled to an upper portion of the lower knob to be positioned above the light transmissive portion; The ambient light device further includes a pattern layer configured to achieve a pattern of a specific shape by using the light reflected from the reflector and formed on a surface of the lower knob.

2. The ambient light device for a rotary shift device according to claim 1, further comprising a boss portion protruding upward in the main housing, wherein, The light guide is mounted to fit outside the boss portion; The printed circuit board and the light source are located below the light guide; and The light emitting mechanism is located above the light guide.

3. The ambient light device for a rotary shift device according to claim 1, further comprising a boss portion protruding upward in the main housing, wherein, The light guide includes a cylindrical portion mounted to fit outside the boss portion; And Legs protruding downward from the cylindrical portion to face the light source are fixed to the printed circuit board.

4. The ambient light device for a rotary shift device according to claim 3, further comprising an optical device formed on an upper surface of the cylindrical portion, wherein the optical device is configured to scatter the light from the light source.

5. The ambient light device for a rotary shift device according to claim 3, wherein, The upper surface of the cylindrical portion of the light guide faces the lower knob; and A portion of the lower knob facing the upper surface of the cylindrical portion is configured to be light transmissive.

6. The ambient light device for a rotary shift device according to claim 5, wherein, A lighting window is coupled to the upper knob to cover an open upper portion of the upper knob; And The ambient light device is configured such that the light from the light source passing through the light transmissive portion and reflected by the reflector is reflected again by a surface of the lower knob and an inner surface of the upper knob, and then irradiated to the outside through the lighting window.

7. The ambient light device of the rotary shift device according to claim 6, wherein, A lower surface of the reflector facing the light transmissive portion includes an inclined surface and is configured to reflect the light from the light source to a surface of the lower knob.

8. An ambient light device for a rotary shift device, comprising: A light source coupled to a main housing corresponding to a fixed component, wherein a reflector is coupled to a shift knob which is a rotating component rotating relative to the main housing; And Among them, the shift knob includes a lower knob and an upper knob. The lower knob is rotatably coupled to the main housing and includes a light-transmitting portion. The upper knob is coupled to the lower knob; The reflector is coupled to the upper part of the lower knob to be positioned above the light-transmitting portion; The ambient light device is configured such that the light of the light source is reflected by the reflector and then irradiated to the outside of the shift knob, The ambient light device further includes a pattern layer, which is configured to achieve a pattern of a specific shape by using the light reflected from the reflector and is formed on the surface of the lower knob.

9. The ambient light device of the knob-type shift device according to claim 8, further comprising a light guide, which is configured to transmit the light of the light source to the reflector and is located between the light source and the reflector, wherein the light guide is coupled and fixed to the main housing as a fixing member.

10. A vehicle, comprising: A vehicle body; A main housing, which is fixed to the vehicle body; And An ambient light device of a knob-type shift device, comprising: A printed circuit board, which is coupled to the main housing; A light source, which is fixed to the printed circuit board; A light guide, which is coupled to the main housing and is configured to transmit the light of the light source; and A light-emitting mechanism, which is provided in a shift knob rotatably coupled to the main housing and is configured to reflect the light of the light source transmitted through the light guide and irradiate it to the outside of the shift knob in the form of ambient light, Among them, the shift knob includes a lower knob and an upper knob. The lower knob is rotatably coupled to the main housing and includes a light-transmitting portion. The upper knob is coupled to the lower knob; The light-emitting mechanism includes a reflector, which is coupled to the upper part of the lower knob to be positioned above the light-transmitting portion; The ambient light device further includes a pattern layer, which is configured to achieve a pattern of a specific shape by using the light reflected from the reflector and is formed on the surface of the lower knob.

11. The vehicle according to claim 10, further comprising a boss portion that protrudes upward in the main housing, wherein, The light guide is mounted to fit outside the boss portion; The printed circuit board and the light source are located below the light guide; and The light-emitting mechanism is located above the light guide.

12. The vehicle according to claim 10, further comprising a boss portion that protrudes upward in the main housing, wherein, The light guide includes a cylindrical portion, and the cylindrical portion is mounted to fit outside the boss portion; And A leg that protrudes downward from the cylindrical portion to face the light source is fixed to the printed circuit board.

13. The vehicle according to claim 12, further comprising an optical device formed on the upper surface of the cylindrical portion of the light guide, wherein the optical device is configured to scatter the light of the light source.

14. The vehicle according to claim 12, wherein, The upper surface of the cylindrical portion of the light guide faces the lower knob; and A portion on an upper surface of the lower knob facing the cylindrical portion is configured as a light-transmitting portion through which light can pass.

15. The vehicle according to claim 14, wherein the illumination window is coupled to the upper knob to cover an open upper portion of the upper knob; and the ambient light device is configured such that light of the light source that passes through the light-transmitting portion and is reflected by the reflector is reflected again by a surface of the lower knob and an inner surface of the upper knob, and then is irradiated to the outside through the illumination window.

16. The vehicle according to claim 15, wherein, A lower surface of the reflector facing the light-transmitting portion includes an inclined surface and is configured to reflect light of the light source to a surface of the lower knob.

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